Vertical distance comparison
of the Earth's surface, of which approximately 71% is covered with water
In aviation the term elevation or aerodrome elevation is defined by the ICAO
as the highest point of the landing area. It is measured in feet and can be found in approach charts of the aerodrome. It is not to be confused with terms such as the altitude
Maps and GIS
GIS or geographic information system
is a computer system that allows for visualizing, manipulating, capturing, and storage of data with associated attributes. GIS offers better understanding of patterns and relationships of the landscape at different scales. Tools inside the GIS allow for manipulation of data for spatial analysis or cartography.
Heightmap of Earth's surface (including water and ice) in equirectangular projection
, normalized as 8-bit grayscale, where lighter values indicate higher elevation.
USGS (United States Geologic Survey) is developing a 3D Elevation Program (3DEP) to keep up with growing needs for high quality topographic data. 3DEP is a collection of enhanced elevation data in the form of high quality LiDAR data over the conterminous United States, Hawaii, and the U.S. territories. There are three bare earth DEM layers in 3DEP which are nationally seamless at the resolution of 1/3, 1, and 2 arcseconds.
Global 1-kilometre map
This map is derived from GTOPO30
data that describes the elevation of Earth's terrain at intervals of 30 arcseconds (approximately 1 km). It uses hypsometric tints
instead of contour lines to indicate elevation.
Each tile is available at a resolution of 1800 × 1800 pixels (approximate file size 1 MB, 60 pixels = 1 degree, 1 pixel = 1 minute)
Processed LiDAR point cloud showing not only elevation, but heights of features as well.
- Amsterdam Ordnance Datum, aka Normaal Amsterdams Peil (NAP), Dutch vertical datum
- Height, general
- Hypsometric tints
- Lapse rate, or the adiabatic lapse rate
- List of European cities by elevation
- List of highest mountains on Earth
- List of highest towns by country
- List of the highest major summits of North America
- Normalhöhennull, German vertical datum, literally: standard elevation zero, (NHN)
- North American Vertical Datum of 1988, (NAVD 88)
- Orthometric height
- Physical geography
- Topographic isolation
- Topographic prominence
- Vertical pressure variation
- ^ AERODROMES (PDF). Montreal, Canada: International Civic Aviation Organisation. 1951. p. 9.
- ^ Survey, U.S. Geological. "The National Map: Elevation". nationalmap.gov. Retrieved 2017-02-24.
Look up elevation
in Wiktionary, the free dictionary.
Last edited on 21 May 2021, at 20:41
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